Question

exercise 1.4
2. Write all the possible 2-digit numbers that can be formed by using the digits 1, 5 and 9, where the
digits can be used only once. Also find the sum of the numbers.​

Answer 1

Answer:

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Step-by-step explanation:

1. Step-by-step explanation:15
2. Step-by-step explanation:1519
3. Step-by-step explanation:151951
4. Step-by-step explanation:15195159
5. Step-by-step explanation:1519515991
6. Step-by-step explanation:151951599195

Step-by-step explanation:151951599195Sum-

Step-by-step explanation:151951599195Sum-(15+19+51+59+91+95) =330